16x^2+3x-160=0

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Solution for 16x^2+3x-160=0 equation:


Simplifying
16x2 + 3x + -160 = 0

Reorder the terms:
-160 + 3x + 16x2 = 0

Solving
-160 + 3x + 16x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
16 the coefficient of the squared term: 

Divide each side by '16'.
-10 + 0.1875x + x2 = 0

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + 0.1875x + 10 + x2 = 0 + 10

Reorder the terms:
-10 + 10 + 0.1875x + x2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + 0.1875x + x2 = 0 + 10
0.1875x + x2 = 0 + 10

Combine like terms: 0 + 10 = 10
0.1875x + x2 = 10

The x term is 0.1875x.  Take half its coefficient (0.09375).
Square it (0.0087890625) and add it to both sides.

Add '0.0087890625' to each side of the equation.
0.1875x + 0.0087890625 + x2 = 10 + 0.0087890625

Reorder the terms:
0.0087890625 + 0.1875x + x2 = 10 + 0.0087890625

Combine like terms: 10 + 0.0087890625 = 10.0087890625
0.0087890625 + 0.1875x + x2 = 10.0087890625

Factor a perfect square on the left side:
(x + 0.09375)(x + 0.09375) = 10.0087890625

Calculate the square root of the right side: 3.163667028

Break this problem into two subproblems by setting 
(x + 0.09375) equal to 3.163667028 and -3.163667028.

Subproblem 1

x + 0.09375 = 3.163667028 Simplifying x + 0.09375 = 3.163667028 Reorder the terms: 0.09375 + x = 3.163667028 Solving 0.09375 + x = 3.163667028 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.09375' to each side of the equation. 0.09375 + -0.09375 + x = 3.163667028 + -0.09375 Combine like terms: 0.09375 + -0.09375 = 0.00000 0.00000 + x = 3.163667028 + -0.09375 x = 3.163667028 + -0.09375 Combine like terms: 3.163667028 + -0.09375 = 3.069917028 x = 3.069917028 Simplifying x = 3.069917028

Subproblem 2

x + 0.09375 = -3.163667028 Simplifying x + 0.09375 = -3.163667028 Reorder the terms: 0.09375 + x = -3.163667028 Solving 0.09375 + x = -3.163667028 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.09375' to each side of the equation. 0.09375 + -0.09375 + x = -3.163667028 + -0.09375 Combine like terms: 0.09375 + -0.09375 = 0.00000 0.00000 + x = -3.163667028 + -0.09375 x = -3.163667028 + -0.09375 Combine like terms: -3.163667028 + -0.09375 = -3.257417028 x = -3.257417028 Simplifying x = -3.257417028

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.069917028, -3.257417028}

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